Mechanical Field Engineer – Steam Generation Facility

At Amentum, we're not just solving problems; we're engineering the future. Our team is driven by an unyielding commitment to innovation, integrity, and collaboration, tackling some of the most significant challenges in science, security, and sustainability. If you're passionate about making a real impact and want to be part of a community that values ethical excellence, this is the place where your ambition can thrive.

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We are seeking an experienced Mechanical Field Engineer to support the delivery of a major steam generation facility project in Barrow. This is a site-based project engineering role acting as the key interface between the construction installation teams and the engineering/design office, ensuring that all mechanical installation activities are executed in accordance with approved design intent, applicable codes, specifications, and project quality requirements.

The successful candidate will possess strong knowledge of mechanical piping systems, structural steel erection, fabrication and installation processes, and be capable of interpreting engineering documentation including isometrics, GA drawings, and 3D engineering models. The role requires close coordination with construction, QA/QC, design engineering, and subcontractor teams throughout all phases of installation and commissioning preparation.

• Act as the primary mechanical engineering interface between the design engineering team and site construction teams.
• Ensure installation activities are completed in accordance with approved drawings, specifications, procedures, and design intent.
• Review and interpret:
  • Mechanical isometrics
  • General arrangement drawings
  • P&IDs
  • Fabrication drawings
  • Engineering 3D models
  • Structural steel erection drawings
• Provide field engineering support for:
  • Mechanical pipework installation
  • Structural steel erection
  • Fabrication and fit-up activities
  • Painting and coating systems
  • Thermal insulation scope
• Resolve site technical queries and coordinate design clarifications with engineering disciplines.
• Support constructability reviews and identify potential installation clashes or design issues.
• Ensure compliance with applicable standards and codes including:
  • ASME piping codes
  • ISO standards
  • Project specifications
  • Quality and welding requirements
• Monitor subcontractor installation activities to ensure workmanship and compliance with engineering documentation.
• Participate in walkdowns, inspections, punch listing, and turnover activities.
• Coordinate with QA/QC teams regarding inspections, test packs, and mechanical completion requirements.
• Support management of field changes and red‑line markups for as‑built documentation.
• Interface with planning and construction management teams to support installation sequencing and progress reporting.
• Promote safe systems of work and adherence to project HSE requirements.

• Degree or HNC/HND in Mechanical Engineering or related discipline.
• Proven experience in a Mechanical Field Engineer, Project Engineer, or Construction Engineer role within heavy industrial, energy, nuclear, or process plant environments.
• Strong understanding of:
  • Mechanical piping systems
  • Steam generation or process plant installations
  • Structural steel erection
  • Fabrication and welding processes
• Working knowledge of applicable:
  • ASME piping codes
  • ISO standards
  • Mechanical installation standards
• Ability to read and interpret:
  • Isometric drawings
  • P&IDs
  • Structural and fabrication drawings
  • Engineering…